Determination of boron in silicate samples by direct aspiration of sample HF solutions into ICPMS
Determination of boron in silicate samples by direct aspiration of sample HF solutions into ICPMS
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DOI：
10.1021/ac970383s
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发表时间：
1997-09-15
影响因子：
7.4
通讯作者：
Nakano, T
中科院分区：
文献类型：
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作者：
Makishima, A;Nakamura, E;Nakano, T
采用同位素稀释-电感耦合等离子体质谱（FI-ID-ICPMS）技术，建立了硅酸盐岩石中硼含量的快速、准确测定方法。样品用HF和甘露醇分解，干燥以除去气体形式的硅，并用BF重新溶解以从氟化物残渣中提取硼。最终，HF溶液直接吸入ICPMS。总程序空白为0.08-0.36 ng。没有基质诱导的质量歧视中观察到的岩石溶液的稀释因子高达110。本方法能够测定1毫克硅酸盐岩石样品中的1微克（-1）硼，空白校正为
A rapid and precise technique for the determination of boron content in silicate rocks was developed by employing isotope dilution inductively coupled plasma mass spectrometry with a now injection system (FI-ID-ICPMS). The sample was decomposed with HF and mannitol, dried to remove silicon as gas, and redissolved with BF to extract boron from the fluoride residue. Ultimately, the HF solution was directly aspirated into the ICPMS. The total procedural blank was 0.08-0.36 ng. No matrix-induced mass discrimination was observed in the rock solution for dilution factors of up to 110. The present method is capable of determining 1 mu g g(-1) boron in a 1 mg silicate rock sample with blank correction of